Specification Sheet
MH400/U/ED28
5/31/2015
Project:
Metal Halide Lamps
Metal Halide
400 Watt ED28 (Clear) Lamp
Catalog#:
Approved by:
Ordering Information
MOL
LCL
Howard Catalog Number (Ordering Code)
MH400/U/ED28
UPC Code
01122
ANSI Designation
M59/E
Description
Metal Halide
Package Quantity
12
Physical Characteristics
Bulb Size
ED28
Bulb Finish
Clear
Base
Mogul
MOL (Maximum Overall Length) (in.)
8.31
LCL (Light Center Length) (in.)
5
Operating Characteristics
Lamp Watts (Nominal)
400
Approx. Initial Lumens
41,000
Approx. Mean Lumens
26,650
Average Rated Life (Hours)
12,000
Color Temperature (K)
4,000
CRI (Color Rendering Index)
60
Operating Position
Universal
Note:
7.
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6.
WARNING: THIS LAMP CAN CAUSE SEROUS SKIN AND EYE INFLAMMATION FROM SHORT WAVE ULTRAVIOLET RADIATION IF THE OUTER
ENVELOPE OF THE LAMP IS BROKEN OR PUNCTURED. DO NOT USE
WHERE PEOPLE
WILL REMAIN FOR MORE THAN A FEW MINUTES UNLESS ADEQUATE
SHIELDING OR OTHER SAFETY PRECAUTIONS ARE USED. Lamps that
will automatically extinguish when the outer envelope is broken or punctured
are commercially available.
When operated on ballasts having a sustaining voltage less than 270V, lamp
life may be significantly reduced.
Lamps classified as E-type are to only be used in suitably enclosed luminaries.
Please see Howard HID Lamp Warning.
Electrical Shock and Burn Hazard: Do not remove or insert lamp when
power is own. If outer glass bulb is broken, shut off power immediately and
remove lamp after it has cooled.
Protect lamp from direct contact with liquids to avoid breakage from thermal
shock.
This lamp must be used only with proper circuit and auxiliary equipment and
suitable ballast.
8.
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Do not scratch the glass of bulb or subject this lamp to undue pressure as
either may cause lamp to break. Replace scratched, cracked, broken or damaged bulbs immediately.
The lamp should be screwed firmly, but not forcibly, into the socket to reduce
the possibility of loosening due to vibration. Use of excessive force may result
in lamp breakage.
Do not touch hot lamps with fingers, skin or any flammable material. Lamps
may remain hot after being turned off.
Keep combustible materials away from lamp during operation.
Do not paint the lamp to prevent its overheating or breakage.
This is a discharge lamp and requires some time to restart and come up to
full brightness after a power interruption. Lamps may require 2 to 4 minutes to
relight.
Recycle lamps in accord with local, state, and federal disposal laws.
See: www.lamprecycle.org.
Specifications subject to change. Actual results may vary.
Howard Lighting Products | 580 Eastview Drive | Laurel, MS 39443
(toll free) 800.956.3456 | (direct) 601.422.0033 | (fax) 601.422.1652
www.HowardLightingProducts.com